Improvement in hydrants



/f .f7/WWW@ N. PETERS. PHOTO-LITHOGRAFHER, WASHINGTON. D, C.

datiert gatuite @anni (titille.

ALEXANDER MCKENNA, JOHN,y MCKENNA, AND THGMAS MCKENNA, OF PITTSBURG, PENNSYLVANIA. i

`Letters .PatentNo. 105,106, dated July 5, 1870.

IMPROVEMENT IN HYDRANTS.

The Schedule referred to in these Letters Patent and makingpaxt of the same.

We, ALEXANDER MGKENNA, JOHN liIoKnNNA, and THOMAS MCKENNA, of Pittsburg, in the county of' Allegheny and State of Pennsylvania, have invented certain Improvements in Hydrants, of which the following is a specification.

Nature and Objects of the Invention.

Our invention consists in constructing a hydrant with a turning bib or nozzle, forming part of a movable dlscharge-pipe, having at its lower end a dat rotary valve, 'through which and` to one side of its axis,

upward passage ofwater, but, as soon as the ds charge-pipe and its valve is turned to shut off the flow,A its opening is brought directly over this small hole, by which the discharge-pipe is emptied, and thus prevented from freezing.

Another part of our invention consists in the method we employ for keeping the valve tightly pressed down to its seat, admitting of easy adjustment from thevout` side, without opening the hydrant or in any way interfering with its operative parts. Another part consists in the use of a sliding ring, placed on the outside of the casingA or stock, as a cover, to keep the slot in which the nozzle moves, closed. f

The object of our invention is to make a cheap, durable, and effective hydrant, the operative parts of which may be readily detached from the supply-pipe, and removed from the stock or casing, either for re- -pairs or protection, with disturbing the surrounding earth.

Description 0f the .Accompanying Drawing.

Figure 1 is a side elevation of our hydrant. Figure 2, a vertical section of the same.

Figure 3, a front view of the casing, with top removed.

Figure 4, top viewl of the valve-seat. l Figure 5, bottom view of' the valve and portion of supply-pipe.

Figure 6, vertical section of the valve and its seat, the opening of the valve, in this case, being represented as over the waste-hole. Figure 7, side View of same, the broken lines representing the large openings as being coincident, as in position when drawing Water.

Figure 8, transverse sectionof casing and its surrounding ring just above the nozzle.

Figure 9, vertical section of upper portion or" the casing-cap, with hollow pressure-screw.

Figure 10, top View ofthe cap, with screw removed.

Figure 1l, vertical section of hollow safety-washer.

Figure 12, end view of the same;

General 'Description'.

The stock A of this'hydrant may be .made in any of the well-hnowu forms, but in this case consists of' a stout iron tube, to the bottom of which is attached a. ila-t circular valveseat, B, soarranged as that its face ison the inside, and at right angles to aline drawn vertically through the center of the stock.

This valve-seat isprovided with a large triangularshaped opening, C, leading down into a hollow curved arm, D, to admit lof' its being connected to the supplypipe, and, in addition to this, is provided with a small hole, f, extending. quite thronglhit to the outside, as

shown iu gs. 4 and 6.

On top'of this seat rests the' valve F, like au iuverted flat-bottomed cup, its bottom being of the same diameter as the seat B, its edges overhang it, and serve'as a guide, to direct it and keep it in place, and as a support to a leather disk, X, interposed between them.

Through this disk and the valve F there is but one opening, G, corresponding in size .and shape to thatl iu the seat B, leading 'to the supply-pipe D.

j Screwed into the top of this valve F,'an'd extend ing upward therefrom, so as toform a continuation of vits opening, Gr, is a vertical pipe, H, the top of which terminates in a union joint, S, connecting it to the bib or nozzle K. This passes through and works iu a slot, T, cut in the casing A, as shown in Iigs. Sand 8, and a hoop or ring, V, is placed around its outside, through which the nozzle alsol passes, and, being loose and free to turn, moves therewith, and keeps the slot T closed, regardless of the position of the bib.

The casing A is surmouuted and closed in by a screw-cap, L, andthroughthe center of this a hollow male screw, a, passes, inside of which isacup-shaped Washer, n, which rests upon the -top of a pivot, P, brazed into the upper end of the union S, as a means of holding the pipe H in the center of the casingA, and to regulate the bearing of the valve F ou its seat.

To prevent this screw a from turning,-by the action v of the pivot P, the washernl `is providedwith aiiauge,

fr, having several projections or corners which itinto correspondingly-shaped ncks, t t, cut in the sides of' the central screw of the cap L, as seen in fig. 10;

Operation.A The parts ofrthis hydrant being constructed as shown, and arranged as represented in section, fig. 2, the nozzle K is free to turn either right or left in the slot T, carrying with it the outside ring V, and moving in a pivoted way the discharge-pipe H, and the valve F. v

Now, if the nozzle be turned so as to bring the opening G in the valve opposite the opening C in its seat B, a clear passage is made for the water to ow up through the vertical pipe H, and out at the nozzle. 0n turning the parts in an opposite direction, so that the nozzle will occupy the posit-ion indicated by the broken lines in Iig. 8, the valve will be given a correspending turn, bringing its opening Gr directly over the small hole f, as shown in iig. 6, and iig. 4. This operation cuts o' the flow from the supply-pipe, and allows that water left in the vertical pipe to waste, and leave the upper part of the hydrant perfectly dr 5in case it should become necessary to remove the operative parts, either for repairs or for other purposes, the cap L may be nnscrewed, and the nozzle brought under the vertical portion of the slot T, and lthe pipe H, together with its attachments, consisting of the v alve, leather disk, and nozzle, withdrawn from the casing.

Claims.

,We claim as our iuvention- Forming the rotary valve F in the shape of au invertedat-hottomed cup, whose edges surround and H, rotary valve l", and its stationary seat B, when.

the several parts specified are constructed and, made to operate with respect to cach other, as shown and set forth.

ALEX. MCKEN N A. JOHN MCK ENNA. lVitnesses: THOMAS MCKENN A JosrAH. W. Enns, J. B. WHALEY. 

